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研究有关不同类型的聚合物改性地沥青的低温性能，采用温差应力约束试件试验（ＴＳＲＳＴ）来评估地沥青混合物低温开裂的性质。试验研究了五种聚合物改性沥青和三种类型的混合物（密实等级，石屑玛王帝脂和多孔地沥青），此外分析了三种不同的“摊铺地沥青”混合物。根据获得的结果，其中可推断出：（１）聚合物类型，混合物类型和老化程度影响地沥青混合物的低温性质；（２）老化期中断裂温度的提高取决于混合物和聚合物的类型；（３）应用改性胶结料可改善“摊铺地沥青”混合物的低温性质。
The low-temperature properties of different types of polymer-modified bitumen were studied, and the properties of low-temperature cracking of the bitumen mixture were evaluated using the Thermostatic Stress Constraint Specimen Test (TSRST). Five types of polymer modified bitumen and three types of blends (compact grade, stone chips and porous bitumen) were tested and additionally three different “paving asphalt” blends were analyzed. Based on the results obtained, it is concluded that: (1) the low temperature properties of the asphalt mixture are affected by the type of polymer, the type of mixture, and the degree of aging; (2) the increase of fracture temperature during aging depends on the type of mixture and polymer; ) The use of modified cements improves the low-temperature properties of “paving asphalt” mixtures.